Multifunctional design: The drill bit sharpener features adjustable slots that fit a range of bit sizes, giving your old drill grinder life and enabling easy angle adjustments. You can polish drill bits at different angles for precise results. Portable and lightweight: for travel or onsite work; compact in design and easy to carry. Extensive use: Sharpen speed steel, carbide, twist drills, cobalt drills, and more with ease. It includes a motor and grinding wheel for versatile and efficient results. Easy to operate: Attach to the grinder and conveniently adjust the grinding angle to match your needs. No special skills required; beginnerfriendly. Use scenarios: In a home workshop, refurbish dull drill bits for woodworking or metalworking tasks to restore cutting performance. On a construction site, perform quick tool maintenance to keep drills sharp and ready for immediate use. For DIY projects, handle a variety of bit types (HSS, carbide, cobalt) with minimal setup to achieve precise grinding results.